Weft tension and loom stopping device



y 28, 1940- w. T. SULLIVAN 2,202,323

WEFT TENSION AND LOOM STOPPING DEVICE Original F iled Oct. 14, 1938 WODD/il/F F T 50L Ll VA IV.

the 1nvent1on comprises certain novel construc- Patented May 28, 1940 UNITED STATES WEFT TENSION AND LOOM STOPPING DEVICE Woodruff T. Sullivan, Norwich, Conn.

Original application October 14, 1938, Serial No.

Divided and thisapplication March 15, 1939, Serial No. 262,044

10 Claims.

scribed in my original application, filed October 14, 1938, Serial No. 235,044, entitled Shuttleless loom, and this case disclosure is a division from said application, Serial No. 235,044.

An object of this invention is the provision, in a loom, of a novel and efficient device, whereby the loom will be stopped in the event there is a notable lessening of tension on the filling at any time, or if the filling should break. This would eliminate the possibility of broken picks, which condition is not ordinarily solved. I

Another 'object is the provision of efficient means for accurately regulating the tension of the filling, whereby the tension of said filling is at all times constant, resulting in every pick being inserted under identical conditions, whereby a more uniform weave is produced.

A further object of the invention is the elimination of cop or quill winding and the substitution therefor of cone Winding, which results in a very considerable lower operating cost, as well as investment. 7

With the foregoing and other objects in view,

tions, combinations and arrangements of parts as will be hereinafter fully described, illustrated in the accompanying drawing, and more particularly pointed out in the appended claims.

In the drawing:

Figure 1 is a view in elevation of the large fill- Figure 5 is an enlarged fragmentary view of the tension device. 7

Referring to the drawing, in which I have shown the preferred embodiment of my invention, it is to be understood that in supplying the filling l'to the loom, I provide a large filling cone 2 supported preferably upon a suitable bracket 3. This cone 2 can carry any desired filling, and will carry a great amount of filling, producing a supply of filling far in excess of that which the shuttle is capable of carrying in an ordinary loom. Therefore, it will be seen that my loom will-operate a comparatively indefinite period before a new supply of filling is required. The filling I is threaded through the tension device 4, thence to the eye 5 mounted in the outer flange 6 of bracket 1. The filling I is then threaded through the inner tube 8 of the inserting device fully shown and described in my copending application, Serial No. 235,044.

The tension device 4 comprises the base brack et 9 which is fastened to a support or the floor by means of bolt l0. This base bracket 9 is provided with an upstanding portion ll. Extending near the upper end of extension H are the stationary tension fingers I2. The fingers l2 are provided on their outer ends with a turned down portion I3, and intermediate their ends they are provided with notches or upwardly bent portions l 4. An auxiliary bracket I5 is fastened by screws.

l6 (Fig. 3) to the upstanding portion H of bracket 9. Auxiliary bracket I5 is suitably insulated from bracket 9. Auxiliary bracket I5 is substantially Y-shaped in structure (Fig. 2) producing bearing yoke H. The ends of this yoke l1 form hearings in which rotary pin I8 is mounted. On pin [8 is fixedly secured sleeve 19. Projecting from this sleeve is are the tension eye fingers 20. Each finger 2D has a downwardly extending portion 2! on which'is formed an eye 22. The end tension finger (Fig. 5) has a long downwardly extending portion 23 which is bent at right angles at 24. A collar 25 is fastened on one end of pin !8 and extending from this collar 25 is threaded rod 26. On rod 26 is adjustable nut 2'1.

is electrical lug connector 3|. Without depart- I ing from the spirit and scope of this invention, porcelain eyes may be substituted in place of the eyes 22, etc.

It will, therefore, be seen that the filling i, from cone 2, passes through the wool tension roll 32 (Fig. 1) held in a coil-spring-like bracket 33; the lower angle end of bracket 33 is fastened to the uprightportion l by means of a screw 34. From the roll 32, the filling enters the tension device 4, passing under astationary finger l2 and then through eye.22 of the contiguous finger 20. This sequence of the passing under one and then throughthe eye of the other tension finger continues until the filling l leaves the last tension finger, from which it goesto the eye 5, and then is threaded intothe tube 8 (Fig. 4) Due to the interlacing of the filling between the stationary tension fingers and the rotatable or. eye tension fingers'zll and the tendency of the adjustable nut 3'! to take up slack on the upper tension fingers, a tension maintained on the filling I which may be adjusted as desired by using more or less l trical circuit, which in turn will cause the loom to stop through the usual method of stop motion control of the warp stop motion. This device will also function similarly should the filling become broken. Of great importance is the fact that every, insertion of the filling in the weaving operation will be under practically identical tension, thus insuring a perfect filling tension condition, which will be reflected in a superior woven fabric.

While I have described the preferred embodiment of my invention and have illustrated the same in the accompanying drawing, certain changes or alterations may appear to one skilled in the art to which this invention relates during the extensive manufacture of the same and I, therefore, reserve the right to make such changes or alterations as shall fairly fall within the scope of the appended claims.

What I claim is:

1. In a weft tension and loom stopping device, the combination of a substantially L-shaped bracket, said bracket provided with stationary tension fingers, each finger provided near its center with a notch and with a downwardly extending outer end, an auxiliary bracket insulated from said L-shaped bracket, means detachably securing said brackets together, said auxiliary bracket provided with an upstanding yoke, a pin extending through the ends of said yoke, a sleeve on said pin and fixedly secured thereto, fingers fixedly secured to said sleeve, said last-mentioned fingers provided with eyes positioned normally contiguous with the notches on the firstmentioned fingers, one of said last-mentioned fingers provided with an extension constructed and arranged to engage one of the first-mentioned fingers, a collar on said pin provided with a threaded rod, and an adjustable Weight nut on said threaded rod.

2. In a weft tension and loom stopping device, the combination of a base bracket provided with fixed weft contacting fingers, an auxiliary bracket provided with a yoke, means connecting said base bracket and auxiliary bracket including electric insulating means between the two brackets, said yoke provided with means including swinging weft supporting fingers between the fixed Weft contacting fingers, and one of said swinging fingers provided with a hook portion constructed and arranged to engage an adjacent weft contacting finger and thereby close a circuit for stopping a 100m if the weft breaks.

3. In a weft tension and loom stopping device, the combination of a base bracket provided on its upper end with horizontally-extending stationary weft contacting fingers, an auxiliary bracket secured against the upper end of said base bracket, means electrically insulating said brackets from each other, said auxiliary bracket provided with a movable unit having a movable weft supporting finger located above and between a pair of the horizontal stationary fingers and said movable finger provided with means for engaging one of said stationary fingers for limiting movement of said movable unit and closing a circuit between said fingers for stopping a loom if the weft breaks.

4. In a weft tension and loom stopping device, the combination of a base bracket provided with outstanding stationary weft contacting fingers near its upper end spaced transversely from each other, means electrically insulating and mounting an auxiliary bracket on said base bracket, said auxiliary bracket provided with means including vertically-movable weft supporting fingers located over and cooperating with the stationary fingers, and certain of the verticallymovable fingers and stationary fingers being provided with interlocking means, whereby movement of the movable fingers is limited and a circuit closed for stopping a loom if the weft breaks.

5. In a weft tension and loom stopping device, the combination of a stationary bracket provided with fixed weft contacting fingers, an auxiliary bracket mounted on and insulated from said stationary bracket, a yoke carried by the auxiliary bracket, movable means on said yoke provided with an angular weft supporting finger located above and between a pair of said fingers and said angular finger being constructed and arranged to interlock with one of the fixed fingers to complete a circuit when a weft is broken and stop a loom.

6. In a weft tension and loom stopping device, the combination of a stationary bracket provided with stationary weft contacting fingers, a bracket provided with rotatable means secured to said stationary bracket and insulated therefrom, said rotatable means provided with adjustable weight means and with a movable weft supporting finger located above the stationary fingers, one of the movable fingers being constructed and arranged to engage a companion weft contacting finger of the stationary bracket when a weft is broken and close a circuit through said fingers for stopping a loom.

7. In a weft tension and loom stopping device, the combination of a sectional bracket, one section of said bracket provided with fixed weft contacting fingers, the other section of said bracket provided with rotatable means, said rotatable means having a weight extending in one direction and carrying a weft supporting finger extending in another direction and located above and between a pair of fixed fingers, the weft supporting finger being constructed and arranged to engage one of the fixed fingers for closing a circuit therethrough for stopping a loom when a weft is broken.

8. In a weft tension and loom stopping device, the combination of a sectional bracket, one of said sections provided with fixed weft contacting fingers and other section being provided with rotatable means, weight means and'a weft supporting finger mounted upon said rotatable means and located above the fixed fingers, and said last-mentioned finger being constructed and arranged to engage one of the first-mentioned fingers for closing a circuit through said fingers and stopping a loom when a weft is broken.

9. In a weft tension and loom stopping device, the combination of a bracket provided with stationary weft contacting fingers, an auxiliary bracket insulated from the first-mentioned bracket, said auxiliary bracket being provided with an upstanding yoke, said, yoke being provided with a tiltable unit including a wait supporting finger, said weft supporting finger x pin, movable weft supporting fingers fixedly carbeing provided with a right angled extension extending under a weft contacting finger, and said extension being constructed andarranged toengage the last-mentioned weft contacting finger when a weft is broken for closing a. circuit through said fingers and stopping a loom.

10. In a Weft tension and loom stopping device, a main bracket, stationary weft engaging fingers carried by the main bracket, each finger provided intermediate its length with a weft engaging portion and with a downwardly extending outer end, an auxiliary bracket carried by and insulated from the main bracket, said auxiliary bracket provided with a yoke, a pivot pin carried by said yoke, a sleeve fixedly mounted on said ried by said sleeve and provided with weft supporting portions positioned over and normally located contiguous :to the weft engaging portions of the first mentioned fingers, one of the weft supporting fingers provided with an extension constructed and arranged to engage an adjacent one of the stationary weft engaging fingers and close a circuit to stop a loom when a weft breaks WOODRUFF T. SULLIVAN. 

